Doubles

An important skill for adding fluently is memorizing the double number facts. Once the kids have the doubles memorized, they can use the knowledge to figure out double plus one and minus one. For example: if they know 8+8 is 16 then it's easy to figure out 8+9. A great way to practice doubles, at home, is to flip over playing cards and quickly say the double. When your child gets good at this, have him/her flip over the card and name the doubles +1 fact or doubles +2. Here is a fun video we watched about doubles.